Measure not in sync with slicers

Hi,

I have created a measure that counts the number of rows based on Date & Name column.

However the measure is not getting changed according to the slicer selection. Please help me find the issue.

Here is my code:  

CountVal = CALCULATE ( COUNTROWS (Sample), ALLEXCEPT (Sample,Sample[Date], Sample[Name] ) ) 

Sample table:

I am using date dimension for the date slicer.

Thanks!